1970. Fourth Edition. 256 pages. Red dust jacket with white lettering over blue cloth. With slipcase. Colour frontispiece with B&W illustrations throughout. Clean pages with firm binding. Minimal foxing and tanning to endpapers and page edges. Previous owner's inscription to front paste down. Mild wear to spine, board edges and corners, with scuffing and soiling to boards. Clipped dust jacket in protective plastic cover. Mild wear to edges and corners. Moderate sunning to spine. Slipcase is acceptable, with moderate wear, splitting and marking to boards.